Septa are available in a variety of materials and thicknesses. PTFE Natural Rubber are moderately priced seals for GC and HPLC with good chemical properties. They are ideal for multiple injections due to high resealability, but not as easy to penetrate as PTFE/RR. PTFE/High Performance Rubber is a highly pure synthetic red rubber septum that provides a reduced background level for specific GC applications, employing sensitive detectors such as ECD or NPD. PTFE/Silicone Septa (T/S) has high-quality, low background/blank value, 100% synthetic pure silicone septa.
Inlet septa
Supplier: Agilent
These septa are available for a variety of applications and have different upper temperature limits. The lower temperature septa are usually softer, seal better and can withstand more punctures (injections) than their high temperature counterparts.
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Suba-Seal® septa
Supplier: Merck
This rubber turn-over closure with serrated stopper is ideal for air and moisture-sensitive chemistry procedures. After piercing with non-coring needle, rubber closes puncture, providing air and moisture tight seal to protect contents of vessel or container from atmosphere.
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GC septa, Thermogreen® LB-1
Supplier: Merck
These septa are suitable for use with 50 to 300 °C inlet temperatures.
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GC septa, Thermogreen® LB-2
Supplier: Merck
Ready to use GC septa for inlet temperature of up to 100 to 350 °C.
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VWR® Septa/stoppers 20 mm for SPME Crimp Neck Vial ND20
Supplier: LA PHA PACK
VWR®, Septa, Butyl injection stopper, grey
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Sealing discs
Supplier: witeg Labortechnik
These sealing discs are made from white PTFE.
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Septa for unlined aluminium seals, WHEATON®
Supplier: DWK Life Sciences
Septa, Septa, Silicone, Ø: 20 mm
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Septa for screw thread vials, Target®
Supplier: THERMO NATIONAL SCIENTIFIC
Target®, Septa, Septa, for 10-425 screw thread caps, Red PTFE/white silicone, pre-slit, Ø: 10 mm
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Septa for 13-425 screw thread caps
Supplier: THERMO NATIONAL SCIENTIFIC
These septa are suitable for use with 13-425 threaded caps or 13 mm snap/crimp caps.
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Septa for 9 mm screw thread caps
Supplier: THERMO NATIONAL SCIENTIFIC
Flexibility to select the best septum for your instrument and applications.
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Seals for threaded connection caps (Septa)
Supplier: BIRZLE PETER
Silicone, transparent.
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Septa for storage vial caps
Supplier: THERMO NATIONAL SCIENTIFIC
Septa, White PTFE/clear silicone, For: 13-425 screw cap, Thickness: 1,5 mm, Ø: 13 mm
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Septa 8 mm for screw neck vials, 8-425
Supplier: THERMO NATIONAL SCIENTIFIC
These septa are designed to be used with 8 mm screw thread caps.
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: EPPENDORF
: Integra
: OZ BIOSCIENCES
: VWR Collection
: SenseAnywhere
: Integra
: NANOENTEK
: VWR Collection
: Integra
: Sartorius
: Quantabio